Figure 5.

69 year old male with traumatic anterior glenohumeral dislocation with failed reduction after multiple attempts, complete rotator cuff tear, posterior dislocation long head of biceps tendon and haemarthrosis.

Findings:

a) The long head of biceps tendon is seen just lateral to its origin (white arrow). The musculotendinous portions of the rotator cuff: supraspinatus, infraspinatus and teres minor are seen in a clockwise direction (black arrows).

b) The posteriorly dislocated long head of biceps tendon (white arrow) is seen. Torn, retracted supraspinatus demonstrated (superior black arrow) while infraspinatus and teres minor are stretched posteriorly due to the haemarthrosis (further black arrows).

c) The posteriorly dislocated long head of biceps tendon is again seen (white arrow). Supraspinatus and infraspinatus are no longer seen. Torn teres minor is demonstrated (black arrow).

d) The long head of biceps tendon is seen wrapping round the humeral shaft to come anteriorly (white arrow). No rotator cuff tendons are now visualised.

Technique: Sagittal oblique proton-density medial to lateral a–d

1.5T; TR/TE: 3570ms/15ms; FOV 160; matrix 512 × 512; slice thickness 4 mm